In the process of extraction and enrichment of coal waste, considerable
quantities of waste material are produced, mainly the gangue and coal
sludge, considered as waste or raw material. The main directions of the
management development of the waste rock are the production of
aggregates, the production of energy products and the liquidation works
in hard coal mines and the filling of excavations. The paper proposes
the extension of these activities to the use of waste material. The
possibility of using aggregates or extractive waste to fill open-pit
excavations has been proposed, also in areas within the reach of
groundwater and the possibility of building insulation layers of waste
material and the production of mixtures of hard coal sludge and sewage
sludge to produce material with good energy properties. The analysis was
based on the author’s own research and literature data related to
selected parameters of waste material. This paper presents our own
preliminary studies on the amount of combustion heat and the calorific
value of coal sludge combined with other wastes such as sewage sludge.
The proposed methods and actions are part of the current directions of
development, but they allow the extension of the scope of use of both
extractive waste and products produced on the basis of gangue or coal
sludge. Due to the frequent lack of the stable composition of these
materials, their current properties should be assessed each time before
attempting to use them. The fact that it is important to continue
research to promote existing economic use and to seek new activities or
methods has been concluded.